Pneumatic wheel.



S. W. SCOTT. PNEuMAnc WHEEL.

Patented Feb. 29, 1916.

APPLICAIIQN FILED OCT. 3. i913.

@140mm 4 WMZ-e115' 0,0155

'UNITED STATES PATENT s. WALTER scoTT, or TROY, imw'yoan,

` PNEUMATIC WHEEL.

:To allwhom 'it mag/concern:

Be it known that I, -S. WALTER SCOTT, citizen of the United States, residing' at Troy, in the county of Rensselaer and Stateof New York, have invented vnew and useful Improvements in Pneumatic Wheels, of which the -following is a specification.

This invention vrelates to "pneumatic bwheels, the broad object of the invention bein to Vprovide a vehicle wheel tire in whic the body of thetire lis supported resiliently upon and by an inliated pneumatic tube, the latter being thoroughly inclosed and protected so that it is practically impossibleto puncture the same. A further object of the invention is `to provide a special form of rim vparticularly adapted for use in connection with the tire of this invention, `wherebylthe tire maybe removed-and replaced'in an easy and expeditiousmanner. v With the above'and other objects in view, the invention consists in the construction,

combination and arrangement 'of parts, as

will hereinafter be more fully described,

illustrated and claimed.-

In the accompanying drawings Figu'r'e 1 is a side elevation of a section of a tire and rim embodying the present invention. Fig. 2 is a vertical cross section through the same.4 Fig. 3 isl a vertical longitudinal section thereof. Fig 4 is a detail vertical longitudinal 'section through 'the 'tire body showing one 'of the sheetmetal liners.

Referring to the drawings, A designates generally a .rimformed of sheet metal and rolled into the shapeillustr'ated in Fig. 2, the said rim being. preferably formed in two sections 1 and 2 which meet at a central point o n the line 3, the'two sections of the rim being fastened by bolts 4 or the `equivalent thereof to anl annular series of spoke sockets 5 in whichtheouteren ds of'the spokes 6 are inserted and held.

The sections 1 and 2 0f4 the rim are bulged outwardly in opposite directions fas shown at 7 the said bulged portions ofA the 'rim extending laterally beyond the tire properhereinafter described soV as to prevent in -ticularly curbs, the 'rim section is then voffset 4 "inwardly as indicated at 8 andthen extendi'ed outwardly as shown at9 in parallelrelation .to the opposite-rim section,- the eX- tre'me outer edges or margins of therim sec- Specvication of Letters Patent.

tions beingbentoutwardly to-'form annular, .11ps 10 for properly positioning and holding the skirt clamping rings hereinafter described.' l Contained-within the rim hereinabove described is whatis known as an inner or pneui j puentenet-29,1916; Appliaton med october 3, 1913? serial No@ 793,217.

matic tube 11 adapted tobe inflated. by

means of a valveindicated at 12', the valve tube extending inwardly from the inside of the rim as illustrated in Fig. 3.

Supported bythe pneumatic tube 11 is the main tire body 13 which is preferablyformed -of rubber having the proper resiliency, said tire body extending entirely around and being 'supper-ted; at. all points. by the inliated tire 11'.- At suitable intervals the tire body 13 is provided with radially extending slots 14C- and through said slots bolts15 are inserted, said bolts also 'passing through holes in theparallel portions 9 ofl the rim sections. The portions 9 of the rim are held lat a predetermined distance apart by means of spacing sleeves or tubular washers 16 the opposite extremities of which are expanded as shown at 17 and bearing against .the inner faces of the portions 9 of the rim. Each ofthe bolts is provided at one end with a head 1`8 in the form of a right angularhook which bears against the outer face of one of a pair of skirt and rim clamping rings '19 arranged on the outer sides of the rim sections as'shown and within the outwardly projecting annular lips 10. Eachv 490 .sleeves 16 and is provided on its'oppositebolt 15 passes'through -one of the spacing end withaclip20 vhaving' a right angular hook 421V adapted to engage theouter face l of the oppositely located ring 19, theclip 20 being held in place by means of a nut 22 threaded on the bolt.15: By' means 'of the construction just Vdescribed it will be 4seen that the portions 9 ofthe rim are held in rigid relation to eachother and at acertain vdistance apart to admit of the radial movement of the tire body 13 which as previously.- indicated is yieldingly supported by the :innertube 11. 'If desired each of the slotsA 14 in the tire .body 13V may be lined with sheet metalas indicated at 23 to avoid undue wear on the tiregbody.4

S' cured to-.and extending entirely around the tire. body 13 is an *annular`l tread I24 of rubber or some composition frubber 'and fabric, the said tread having secured thereto a double skirt, the side portions of which are indicated at 25 and thecentrallor connecting i lighten and cheapen lthe construction thereyY of in accordance with the load to be imposed "thereon, the tire hereinabove described beportion of which is indicated at 26, the last named portion of the skirtbeing secured to the tread24= by means of non-skid'bolts 27 vthe-heads. 28`of which 'project beyond Athe periphery ofthe tread 24 and the innerends 'of which and also the nuts, 29 thereon are i embedded in the outer face of the tire body 13. The nuts 29 on the outermost rows of bolts 28 are adapted to Icome in contact with the outer'faces ofthe annular lips 1() of the rim so as to limit the inward movement of the tire body 13 and the tread 24. 'The inner edges of the skirts24c are fastened against.

the 'portions 9 of the rim and within the annularlipsrlO by means of the clamping rings 19 which are in turn held firmly in place by the tie bolts l5 and clips 20.

y Tlie.tire body 13 is 'provided at opposite sides and along the inner' corners' thereof with flexible annular shoulders 30 which by com'ingviny contact with the inwardly fset portions of the rimv sectionsgserve tov limit the outward movement ofthe tire body.

These lshoulders are extended toform rela-` tively thin 'flaps 31 which lie between the I inner tube 11 andthe rim and thereby serve to protect the inner tube. Additional slots 14 may be provided in additionto those throughA which the tie bolts' 1,5 pass to give increased resiliency to the tirei and also to` ing adapted either for light duty such as is lrequired. by automobiles or for heavy duty.

such as is required by motor trucks and the like; f

The tire may be removed by disconnecting one of the rim sections from the spoke sock ets 5 and the remainder ofthe' wheel as will be readilyunderstood upon reference tolig;`

2. The'bulging and inward offsetting of the rim sections and the formation of the annular lips 10 serves to materially strengthen and stiffen the rim sections enabling them to be made of metalI of oomy paratively light gage. Thel clamping rings .19 also. assist in stiifening the rim, when inner tube and tire body. Furthermore, the

skirts and their fastening means serve to .prevent the tire from rolling or shifting lat- Lrzaoee and tire may be varied in accordance with, l

the desire of the manufacturer and the particular service to which the tire is to be put. IBy having a resilient or air `cushion backing for the tire body, the tire as a wholewill last much longer than the ordinary'cusliion `or,

SolidV tires which are suppbrted Vdirectly by the rim and without the interposition of a pneumatic' tubel In the preferred embodiment of the invention the number of slots 14 in the tire body will be the same as the number'of tie bolts 15 employed or a multiple of thenumber of bolts so that the slots 14 will come at proper intervals to receive said tie bolts. any reason, the tread orbody portion of the tire will be supported by the outer edge of the' rim and also by the bolts which pass through thebody portion of thetire.l

,g What I claim is In combination, a wheel, a tire receiving metallic rim carried'by said wheel, integral parallel'ofsets formed upon said' rim, a plurality of 4spacing sleeves extending between and engaging the inner surfaces of said off,

sets, an inflatable tire mounted in said rim, a solid tire seated upon said inflatable tire, said solid tire being formed with a circumferentially spaced apart series of openings in which said sleeves are disposed, an annular tread disposed around said solid tire, rightangular portions formed. upon the rim offset and.extending short of the opposite edges of said tread, a flexible shield bearing upon said solid tire and secured to said tread substantially throughout its width, said shield extending at right angles to the plane of said tread and seating under the right angular portions ofand against said rim 'offsets' a plurality of Atie bolts passing through said sleeve and rim offsets, a pair of clamping rings supported upon said bolts and engaging said shield to clamp them against said rim offsets, a shoulder clip carr ried by said Abolts engaging one of said rings, a hook offset upon each of said bolts Should the tube become deiated forengaging the opposite ring, said clip being Alooped upon each of said bolts, and a clamping nut upon each of said bolts for jamming said clip against said rings. Y,

In testimony whereof I affix my signature in presence of two witnesses.

S. WALTER SCOTT.

Witnesses t Josnrrr E. Hovnn, RALPH T. SiirMoNs.

Copies of this patent maybe-obtains?, for live cents each, by addressing the Commissioner of Pairnts,

' washmgm, D. c.y 

